Henry Air-Bloc® 33MR is a UV-resistant, one-component, elastomeric membrane that provides an air barrier on a range of construction surfaces. Liquid-applied with a trowel or spray, Air-Bloc® 33MR cures to a tough, monolithic rubber-like membrane that resists air leakage along with UV radiation and weather.

Features

• Seamless, UV-resistant elastomeric membrane bridges cracks
• Adheres to most construction surfaces, including block, concrete, stone, wood and metal
• Can be applied to damp concrete
• Contains no organic solvents
• Integral mold resistant formulation as per ASTM D5990